Swimmer's Calculus

Swimmer’s Calculus
Airdate	May 8th, 2025
Written by	Breen Frazier
Directed by	Bethany Rooney
EPISODE GUIDE
Previous:	"Save the Children" (Season Two)
Next:	"The Zookeeper"

"Swimmer’s Calculus" is the first episode of Season Three of Evolution and the 21st episode overall.

Summary

When a body washes up on shore in Ocean City, Maryland, the BAU investigates it and four other drowning murders on the East Shore. Rossi is questioned over the prison attack that left Voit comatose.

Guest Cast

• Cortés Alexander - Travis Townsend
• Eric Scott Alperin - Work Friend
• Austin Archer - David Hartle
• Bourke Floyd - Sheriff Brody
• Jade Harlow - Kristi Estes
• Ariel Jackson - Nurse Monica Luna
• Clayton Royal Johnson - Tom
• Dennis Mencia - Richard Downey
• Gilli Messer - Agent Beatriz Carr
• Eddie Mills - Curtis Estes
• Tate Moore - Vivian Estes
• Sam O'Byrne - Franklin Fowler
• Nicole Pacent - Rebecca Wilson
• Tyler Ham Pong - E.M.T. Harris
• Josh Server - Delaware State Trooper Chakoian
• Daisy Wang - Chrissie

Music

• "Life I Know" by Creature Crayon

Bookend Quotes

• Emily Prentiss: "All water has a perfect memory and is forever trying to get back to where it was." — Toni Morrison

Trivia

• AllBeachandBed.com is an evidently loose reference to the AirBnb vacation rental service.

Criminal Minds: Evolution Episodes

Season One (Evolution) Just Getting Started • Sicarius • Moose • Pay-Per-View • Oedipus Wrecks • True Conviction • What Doesn't Kill Us • Forget Me Knots • Memento Mori • Dead End Season Two (Evolution) Gold Star • Contagion • Homesick • Kingdom of the Blind • Conspiracy vs. Theory • Message in a Bottle • Piranha • North Star • Stars & Stripes • Save the Children Season Three (Evolution) Swimmer's Calculus • The Zookeeper • Time to Say Goodbye • I'm Fine, It's Fine. Everything is Fine. • The Brutal Man • Hell is Empty... • ... All the Devils Are Here • Tara • CollateRal • The Disciple